Comparison of clinical characteristics in obsessive-compulsive disorder and body dysmorphic disorder.

Recent research has suggested that body dysmorphic disorder (BDD) is part of the spectrum of obsessive-compulsive disorders. In order to determine the extent of similarity for psychopathology measures, patients diagnosed with BDD were compared to a group of patients diagnosed with obsessive-compulsive disorder (OCD) on obsessionality, compulsivity, overvalued ideas, depression, and anxiety. Results indicate that BDD patients are similar to OCD patients for measures of obsessionality and compulsivity when BDD symptoms are assessed as such. BDD and OCD patients were also similar for measures of depression, and state and trait anxiety. OCD patients had higher levels of anxiety when measuring common physical symptoms associated with this affective reaction. BDD patients had higher levels of overvalued ideas, but fewer obsessive and compulsive symptoms. Overall, the results suggest that BDD is a variant of OCD, with special considerations given to degree of belief conviction (overvalued ideas.